128 SIM Automatic Rotation Modem for Bulk SMS Sending:

Specifications:

• GSM Modem Pool 16 ports 64 SIMs slot.
• GSM 900/1800/850/1900Mhz Quad band (Quectel M35 module employed).
• Automatically SIM rotation.
• IMEI Changeable through Hyper terminal of PC,USB.
• AT Command.
• Main Features:
• Can Support 16 channels simultaneously.
• Can insert 64 SIM cards(each port 4 SIM cards).
• Connect with the Computer through USB Data cable.
• Each channel with separate power switch,
• Each channel can be demolished separately.
• Comply with GSM Phase 2 standard.
• USB Interface.
• Can send and receive SMS in bulk.
• Industrial Chassis, Elegant Appearance design.
• support Windows XP, Windows7, Linux, Unix OS etc.
• Basic Features 
• Asynchronous, transparent or non-transparent, to a maximum 14400 bits/s, .
• Buadrate: 115200 bits/s .
• Automatic baud rate: from 2400 to 19200 bits/s. 
• GPRS compatible.
• SMA antenna interface.
• SIM card Outlet.
• built-in Adapter: 12V -3A .
• USB ports support .
• AT command control (GSM 07.07 and 07.05).
• GSM Modem Pool 16 Ports 128 Sims,it has 16 ports, each ports has 8 SIM cardslot, totally 16 ports 128 SIMs, USB type interface is a newly developed GSM/GPRS Modem pool solution which can automatically realize SIM rotation when do SMS sending, it can effectively lower the SIM block by carriers.
• And improve the SMS sending efficiency. 
• Can preset the SIM rotation rule through hyper terminal of PC by AT command, then the device will automatically do SIM rotation according to the rule.